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-rw-r--r--engines/gob/sound/adlib.cpp6
1 files changed, 4 insertions, 2 deletions
diff --git a/engines/gob/sound/adlib.cpp b/engines/gob/sound/adlib.cpp
index d9fc362547..2bf7f266a1 100644
--- a/engines/gob/sound/adlib.cpp
+++ b/engines/gob/sound/adlib.cpp
@@ -375,8 +375,10 @@ void AdLib::setVoiceTimbre(uint8 voice, const uint16 *params) {
const int voicePerc = voice - kVoiceBaseDrum;
if (!isPercussionMode() || (voice < kVoiceBaseDrum)) {
- setOperatorParams(kVoiceMelodyOperator[0][voice], params0, waves[0]);
- setOperatorParams(kVoiceMelodyOperator[1][voice], params1, waves[1]);
+ if (voice < kMelodyVoiceCount) {
+ setOperatorParams(kVoiceMelodyOperator[0][voice], params0, waves[0]);
+ setOperatorParams(kVoiceMelodyOperator[1][voice], params1, waves[1]);
+ }
} else if (voice == kVoiceBaseDrum) {
setOperatorParams(kVoicePercussionOperator[0][voicePerc], params0, waves[0]);
setOperatorParams(kVoicePercussionOperator[1][voicePerc], params1, waves[1]);